man and a machine his brain controls can give amp tees a leg that is as close to the real thing as science can now get. for "cbs this morning" barry petersen, los angeles. >>> this is an extraordinary story, norah, about how the brain and connecting it to these artificial limbs and how it can send signals. it's the frontier of where medicine is going. >> it is a new frontier, and hopefully one that can help our veterans who have lost limbs in these wars in afghanistan and iraq. what an interesting story from barry petersen. >>> coming up, we'll talk about what makes ohio so critical to the presidential candidates. republican strategist tells us what his focus groups, men and women, are telling him, about the campaign. that's ahead on "cbs this morning." >> announcer: this portion sponsored by macy's. google, how much does the earth weigh? google voice response: earth has a mass of five point nine... ♪sleep on needles by sondre lerche >>> it's 8 a.m. welcome back to "cbs this morning." superstorm sandy victims couldn't be in the -- or could be in the dark for another week. this morning fr